2jfr

Crystal structure of the PPM Ser-Thr phosphatase MsPP from Mycobacterium smegmatis in complex with phosphate at 0.83 A resolution

spinqualitylabelsall models 2jfr, resolution 0.83Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 2jfr is a 1 chain structure with sequence from Mycolicibacterium smegmatis MC2 155. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 0.83Å Ligands: CL, MG, MN, PO4 Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function A0QTQ6_MYCS2 Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMed Serine/threonine-specific phosphatases (PPs) represent, after protein tyrosine phosphatases, the second major class of enzymes that catalyze the dephosphorylation of proteins. They are classed in two large families, known as PPP and PPM, on the basis of sequence similarities, metal ion dependence, and inhibitor sensitivity. Despite their wide species distribution and broad physiological roles, the catalytic mechanism of PPM phosphatases has been primarily inferred from studies of a single enzyme, human PP2Calpha. Here, we report the biochemical characterization and the atomic resolution structures of a soluble PPM phosphatase from the saprophyte Mycobacterium smegmatis in complex with different ligands. The structures provide putative snapshots along the catalytic cycle, which support an associative reaction mechanism that differs in some important aspects from the currently accepted model and reinforces the hypothesis of convergent evolution in PPs. Insights into the catalytic mechanism of PPM Ser/Thr phosphatases from the atomic resolution structures of a mycobacterial enzyme.,Bellinzoni M, Wehenkel A, Shepard W, Alzari PM Structure. 2007 Jul;15(7):863-72. PMID:17637345 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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